Suction-pipe.



B. J. STOCKTON SUCTION PIPE. APPLICATION FILED APR. 1?;1916.

1 ,1 9 1 360. Patented July. 18, 1916.

ROBERT JAMES STOCKTON, OF WELSH. LOUISIANA.

SUCTION-PIPE.

Specification of Letters Patent.

Patented July 18, 1916.

Application filed April 17, 1916. Serial No. 91,668.

To all whom it may concern:

Be it known that I, ROBERT J. STOCKTON, a citizen of the United States, residing at Welsh, in the parish of J efi'erson Davis and State of Louisiana, have. invented certain new and useful Improvements in Suction- Pipes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to suction pipes for pumps for wells which are provided with tubular casings; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the'drawings; Figure 1 is a vertical section of a well provided with a suction pipe according to this invention. Fig. 2 is a plan view of the same.

The well 2 is formed in the earth in any approved way, and its lower part is provided with a metallic casing pipe or tube 3. The suction pipe 4 is smaller in diameter than the casing pipe, and a pump of any approved construction ,is operatively connected with the upper end of the suction pipe. A centrifugal pump is preferably used. The suction pipe is slidable vertically in the casing pipe, and in order tomake a substantially water-tight joint between the lower parts of these pipes, a cuplenther 6 is provided. The horizontal portion of this cup-leather is secured to the top of a conical guide 8 which is secured on the lower end portion of the suction pipe. A

Copies of this patent may be obtained for ring 10 and fastening screws 12 are used to secure the cup-leather to the upper end of the guide, and the vertical cylindrical portion or flange of the cup-leather is slidable against the casing pipe. A spring expansion ring 14 is provided in the cup-leather to press the flange against the casing pipe.

This expansion ring is a split ring of any approved make similar to those used in the plstons of steam cylinders. The conical form of the guide centers the suction pipe as it enters the upper end of the casing pipe, which usually does not extend to the top of the well. This cup-leather prevents any water in the well from passing downwardly i from the casing pipe into the suction pipe, and it also prevents undesirable substances from being drawn up the suction pipe. The

.suction pipe can be raised and lowered as In testimony whereof I have aflixed my signature.

ROBERT JAMES STOCKTON flve cents each, by addressing the commissioner of Patents, Washington, D. 0." 

